Iran has gradually improved its offensive cyber abilities and developed more advanced ballistic missiles since signing an accord last year to curb its nuclear program, the U.S. Defense Department said.

The Islamic Republic now has a �substantial inventory of missiles capable of reaching targets throughout the region, including U.S. military bases and Israel,� according to an unclassified summary from a Pentagon assessment of Iran�s military prowess.

The annual report, mandated by Congress, is the first issued since the U.S. and five other world powers signed the accord with Iran in July last year to curtail its nuclear ambitions in return for ending sanctions. The full report, which includes classified details, was submitted May 31 to congressional defense committees.

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